Machine for forming continuous pipe.



J. L. WIGGINS. mama ron FORMING OONTINUOUS PIPE.

APPLICATION FILED MAY 6. 1909.

Patented Mar. 22, 1910.

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J. L. WIGGINS.

MAGHINB FOR FORMING CONTINUOUS PIPE.

urmoumn rum) an a. 1909.

Patented M81. 22, 1910.

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J. L. WIGGINS.

MACHINE FOR FORMING CONTINUOUS PIPE.

APPLICATION FILED MAY 6, 1909. Mar. 22,

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J. L. WI QGINS. MACHINE FOR. FORMING CONTINUOUS PIPE.

APPLIGATiON TILED MAY 6, I909.

Patented Mar. 22; 1910.

5 SHEETS-SHEET 6.

2 9 i 4. 3 MN m Jh L I I BY W ATTORNEY PATENT OFFICE.

JOHN L. WIGGINS, OF DALLAS, TEXAS.

MACHINE FOR FORMING CONTINUOUS PIPE.

To all whom it may concern:

Be it known that I, JOHN L. \Vmoms, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Machines for Forming Continuous Pipe; and I do declare the following to be a full, clear, and exact description of the invention, such as will enabe others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, andto the figures of reference marked thereon, which form a part of this specification.

.My invention relates to a machine for forming continuous pipe and has for its object to provide a device of that character which is self contained and propelling, and which comprises parts for perforating the pipe at regular intervals, during the ma chine travel.

It is a further'objectof my invention to provide the improved details of structure presently described and pointed out in the claims, reference being bad to the uccompanyifig drawings, in which Figure I is a sideelevation of. a machine constructed according to my invention and showing a portion of formed pipe. Fig. II .is a'plan view offthe machine. Fig. III is 7 an end view of slime.- Fig. IV is a rear end view of same. Fig. V is a central longitudinal section of same. Fig. VI is an enlarged detail view of the punching lever. Fig. VII is a sectional view on the line VIP-VII, Fig.1. showing the anchoring socket for the punch guide bar. Fig. V II]. is asectional view on the line VIIl'VIII,Fi VI, showing the punch lever and its guidi: and operating parts. Fig. IX is a sectional view on the line IX-IX, Fig. I.

Referring more in detail to the parts ;-t designates the machine. cylinder, the forward end of which is closed and the chamber of which extends from a hopper opening 2 to an open rear end 3. Supported on cylinder 1 is a ho per 4 which is rigidly secured to the cylinder body and has a chamber com municuting with the cylinder hopper opening.

5'designates a. bar which is supported on the cylinder body by standards 6 and has the yoke arms 7 which embrace a portion of Specification of Letters Patent.

Application filed May 6, 1909.

Patented Mar. 22, 1910. Serial No. 494,503.

the hopper and are provided with the pin sockets 8 and journal openings 10'.

9 designates pins which are carried by the in the yoke arms, and 10, an axle which is journalcd in the opening 10 in such arms.

11 designates wheels carried by axle 10 and adapted for supporting the cylinder 1 in such a manner that the forward end of the cylinder will be slightly above the ground, while the rear end-of the cylinder rests thereon.-

On the forward end of cylinder 1 is an engine frame 12, through the body of which an axle 13 projects. Carried on axle 13 are the wheels 14 which support the engine frame and the forward end of the cylinder so that the frame and the parts carried thereby are at a suflicient height from the ground to obviate contact therewith.

15 designates an engine of a'suitable type which is carried by av frame 12 and is adapted to operate the crank shaft 16 through the rod 17. Revolubly mounted in the frame der 1 said cylinder is a shaft '18, theforward end of which is opcratively connected with the crank shaft 16 through a system of gear wheels which are constructed and arranged to materially reduce the speed from the crank to the cylinder shaft. Rigidly mounted on the shaft 18, within the cylinder chamber, is a worm 19, which fits c ose against the cylinder sides and is adapted to move material, delivered to the cylinder chamber fromthe hopper, toward t to rear open end of the cylinder.

Rigidly mounted on shaft 18 and projcctcd through and beyond the open end of the cylinder 1 is a core 20, around which tion of the pipe, the worm 19 being term? ated within the cylinder some distance from the open end thereof and the core 20 being extended directly from the 'worm'body in order that the pipe may be formed within the cylinder, before delivery therefrom.

pivotally mounted on the rear wheel axle 10 and extends backwardly a short distance beyond the termination of the cylinder core 20.

22 designates a punch which has a rocking hopper body and project into the sockets 8 .21 designates a punching lever which is,

12 and the forward closed end of the cylinand extending reurwardly through the material is formed during the construcmounting on the free end of lever 21 and extends through a channel in the rear end of the guide bar 5.

23 designates a spring which is connected with the guide bar 5 and punch lever 21 and is adapted for tensioning such lever downwardlytoward the guide bar and the punch 22 toward the freshly formed pipe, when the machine is in operation.

Supported on the guide bar 5 are the standards 24, in the upper ends of which a cross shaft is revolubly mounted. Fixed to the shaft 25 is a pawl 20, the latch end of which is adapted for holding enga 'e ment with a toothed bracket 27, rigidly mounted on the punch lever, so that when such arts are in engagement the lever will be he (1 in elevated position against the tension of the sprin 23; also rigidly fixed to and depending from shaft 25 IS a trip .arm 28.

Revolubly mounted in the guide bar 5 is a shaft 29. Rigidly mounted on shaft 29 is a gear wheel 30 which meshes with a gear wheel 31, on the rear wheel axle 10, so Mott the shaft 29 is revolved upon the revolution of said axle.

Fixed on shaft 29 is a dog 32 which is adapted to engage a trip arm 28 and rock the shaft 25 to release the punch lever to the action of its spring 23, so that the punch 22 ma be moved into contact with the formed pipe and form an aperture therein. Also revolubly mounted on the rear wheel axle 10 is an arm 33 which projects rearwardly beneath the unch lever and is connected withthe gui e bar 5 by a spring 34 of substantially twice the strength of the spring punch lever, each of said springs being preferably mounted at one end on a pin 35 which extends through a slot 36 in the guide bar.

37 designates a bell crank lever which is pivoted at 38, ii the bar slot, and has a weight arm 39 which tensions a catch arm 40 tpward the free end of the arm 33, the catch arm being provided with a lug 41 which is adapted to engage the free end of the arm 33 and hold same against the tension of the spring 34.

' 42 designates a cam which is rigidly mounted on the shaft 25) and is adapt-ed for engagement with a roller 43, on the arm 33, so that when the shaft 29 is revolved the arm may be moved downwardly against the tension of spring 34 to such position that its free end may be engaged and held by the bell crank lever 37.

44 designates a post on the punch lever 2t which depends into position for engagement with the catch arm ol the bell crank lever 37,so that when the lever is moved downwardly by its spring, the lever 37 will be rocked to release the arm 33.

Vheu the machine is in use, material is 3 connecting the guide bar with the delivered to the cylinder 1. through the hopper and enga ed by the worm ll), the material bein .orced back into the forming section of t 1e cylinder under pressure. The pressure on the material forms same into a compact mass around the core 20, so that the material is forced from the open end of the cylinder in a hollow pipe form, the pi a; being delivered onto the ground immediately upon its release from the cylinder in the proper position for irrigating or like purposes. After a portion of the pipe has been laid, in the manner described, a continued operation of the worm will force material against the previousl formed pipe and cause a forward travel 0 the machine, thereby obviating the necessity for an independent driving gcar and insuring a proper machine travel relative to the pipe formation.

In order that the pipe may be used for irrigating purposes, means mustbe provided for the escape of water at regular intervals, and for that purpose I have provided the punching apparatus, illustrated and described. machine the'gears 30 and 31 cause a revolution of the shaft 29, upon which the trip dog 32 and cam 42 are mounted, the dog being adapted to rock the trip arm 28 and move the pawl 26 out of engagement with the bracket on the lever arm, so that such arm. may be moved downwardly by the tension of the spring 23. Tnunediately upon the release of the lever arm the spring draws same downwardly and forces the punch 22 into and througl'i the freshly formed pipe body, producing the aperture 45 therein. During the downward travel of the lever arm the post 44 engages the trip arm of the bell crank lever 37 and moves same out of engagement with the lever arm 33, so that such arm is released to the tension of the spring 34-. Spring 34 being of greater strength than the spring on the lever arm,

will, when the arm 33 is released, move same upwardly against the post 4.4 and raise said During the forward travel of the r postand the lever arm 21 until the punch 22 has cleared the pi )0. After the elevation of the lever arm, t 10 cam 42 is moved into contact with the roller on the arm 33 and forces said arm downwardly against the tension of its spring until it has assumed its original position, when the trip arm on the bell crank lever will be rocked over the upper end of the arm and hold same for a succeeding operation.

\Vith a compact arrangement of the cylinder and engine parts the width of the machine may be so limited that it may travel in the trench, within "which the pipe is to be laid, andby taking advantage of. the Kpropelling tendency of the worm in its ee ing action against the previously formed pipe, the use of independent propelling parts may punch carried by sai arm.

ji'tidmeans for returning said lever to set .59 i V bud and means for feeding material throug {set osition, a revoluble shaft, means on said she t for rockm he onviatedand the propeiiing pressure" ntii- 3 ized in seenring a compact pipe structure.

Hafi'ingthus descr bed In invention, what I claim as new therein and desire to secure byHLetters P: ,ent is '1. The com matlon with a pipe formin sai body, of a punching mechanism comrising a pivotal y mounted arm, a spring or yieldm 1y tensioning said arm towar said pige orming body, a tri ger adaptedforv ho ing saidarm against t e tension of said spring, means for raising said arm to its trig er engaging position, a trip device adapte for workm said trigger, and a 2; The combination'with a pipe formin body and means for feeding material throng sa'i body, of running gear, a pivoted punch lever, means for tensioning said lever, toward the plane of said i e formin body, a'trilggt: adapted for o ding sai lever against actuated by the runnin gear, for tri ping said trigger, and means or setting sai arm.'

3. The combination with a pipe formin bod of means forforcingmatenal throug sai body, running r, a; ivoted' punch lever, a punch carrie by said lever, a trigger adapted for holding said pu'nch le'ver 111 said trig er, a transmis sion, between sai shaft an running gear, and means actuated from the running gear for returning said lever to set position.

4. The combination with a pipe forming bod of means for forcing material through sai bod running gear, a punch lever adapted or movement toward and from said ipe forming bo d a punch carried by said ever a spring a apted for tensioning said punc lever toward said body, a tri ger shaft, a trigtgcr carried by said trigger s raft and adalat'e for holding said lever in set position, atri arm carried by said trigger shaft, a revouble shaft, having operative connection with the running gear, a dog on Said shaft adapted for rocking" said trip arm,

position. 7

5. The combinatibnpyith-a pipe formin bod of means for forcing material through body, a punch lever adapted for movementtoward and from said'pipe forminn body, means fordvieldingly tensionin sai lever toward sai body, a tri ger a apted for holding said lever against t e tension of said tensioning means', a lever returning arm adapted for movement toward and from said lever means for. tensioning said arm toward said ever, a tri ger adapted for holding said arm against t e tension of its tenei ning means, and mechanism for tripplng the ever 'sai lever toward said ed for holding said lever against of said spring, a'lever returning arm pivotbody having atmold chamber "spring adapted for tensiomng said holding trigger and returning and arm to set position.

6-. The \36fii%ifififififi of a bod means for forcing material thro sai body, running gear, a unch lever pivotally mounted and adapts for movement toward andfrom said pi a as ring adapted for 1e din'gly tensioning d a trigger adapt t e tension ally mounted and adapted for movement toward and from said lever, a spring for tensioning said arm toward said lever, a trigger ada-pted for holding said'arm a ainst the tensioil' of saidspring, a revoluble s aft have ing operative connection with said running gear, meansonisaid shaft for tripping sai 1 everholding trigger, a'cam 'onsaid shaft for moving saidarm' against the tension of its spring, and a post on said lever a apted'. for en agement with the arm trigger; -substantia 1y as set forth. r 7. The combination of a pipe formin a hopperoening and a disc ar a, port, a shaft exten mg through said chem, r, means forming body,"

provided wit. r V l foractuati'ng said shaft, a corebarriedby' said shaft, a worm carried by said shaft, run 'ning gear sup ortin said bodyand comprism groun whee s and an axle a lever sivote on said axle and provide with a.

epending post, a punch carried by said lever, a s ring adapted for tensionin said f lever an punch toward the lane 0 said pipe formmg body, a guide ar'having a channel withm'which said punch is adapted totravel, standards on. said ide bar, a shaft revolubl mounted in said standards, a trigger rigi mounted on saidshaftvand l adapted for holding said lever against the tension of its spring, "a'trip arm ri dly mounted on said shaft, a cam shaft revo 'ubly mounted in said guide bar and havingoperative connection with said running g'ear, a dog o'n'said shaft adapted for engagement with saidtri'p arm, adlever return arm pivotally mounted on sai axle and ada ted for engagement with the post on said ever, a

Mra'rmc M. Jamison, Aa'rnna G. BnowN.

arm to- 

